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Why are good developers so wary of agentic development?
Good developers’ caution about agentic development comes from knowing that built isn’t the same as working in production.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 1,423 posts.
1382
Optimizing a lock-free ring buffer
A single-producer single-consumer (SPSC) queue is a great example of how far constraints can take a design. In this post, you will learn how to implement a ring …
1383
Efficient algorithms, the Exponential Time Hypothesis, and losing the plot
On efficient algorithms, the exponential time hypothesis, and losing the plot.
1384
Yes, Claude can do nine loops
Claude computes a nine-loop amplitude in N=4 super-Yang-Mills
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TypeScript 6.0 RC
Today we are excited to announce the Release Candidate (RC) of TypeScript 6.0! To get started using the RC, you can get it through npm with the following
1387
Building a Multi-Agent System from Scratch: Architecture Patterns
Orchestrator-worker, blackboard, and pipeline patterns for coordinating multiple AI agents — with the failure modes that only show up once you go past a single-agent demo.
1388
Efficient C++ Programming for Modern 64-bit CPUs: Chapter 4/part 2
The cost of thread context switch, including cache invalidation, can reach up to 3 million CPU cycles RTTI can be quite expensive, with dynamic_cast being up...
1389
Redefining Go Functions
I once wrote a Perl subroutine that would memoize the subroutine that called it. That much was useful, but then it inserted a copy of itself into the caller, so that its callers would be memoized too. A well-placed call to aggressively_memoize could back-propagate to the whole codebase, spreading functional purity…
1390
Making a vintage LLM from scratch
In this blog post, I will share the adventures I had creating my own LLM, from (almost) scratch, trained only on old texts. I made my own base-training and fine-tuning scripts, data processing pipelines and custom datasets. ("almost from scratch" means I did use existing programming languages and libraries, I didn't…
1391
TorchLean: Formalizing Neural Networks in Lean
Neural networks are increasingly deployed through software stacks whose behavior is defined by tensor layouts, preprocessing choices, compiler boundaries, floating-point arithmetic, GPU kernels, and external model exporters. TorchLean is a Lean 4 codebase for neural network specification, execution, and verification…
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Building a local positioning system to track runners using Ultra-Wideband
An open-source multi-tag fully local UWB positioning system.
1393
The Road to the WASM Component Model 1.0
WASI P3 is almost here, bringing native async support to the WebAssembly System Interface (WASI) and Component Model. In this post, we’re looking to the next big milestone: a stable, formally specified Component Model 1.0.At February’s B...
1394
AI changes the economics of software rewrites
AI changes rewrite economics because codebases with clear, common patterns get more leverage than proprietary or inconsistent systems.
1395
Using GCC's Nested Functions with Wide Pointers and No Trampolines II
When the address of a nested function is taken, GCC creates at trampoline at run-time. This trampoline is placed on the stack, which means that the stack has to be executable. This is problematic because a non-executable stack is an important security feature. For some time now, GCC has the option to place the…
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Regular expressions that work “everywhere”
What regular expression features work everywhere. Very few unless you relax your definition of "everywhere."
1397
An Introduction to YOLO26
What YOLO26 is: NMS-free, edge-optimized YOLO with 43% faster CPU inference, benchmarks by size, licensing, and how it compares to RF-DETR.
1398
Fast and Easy Levenshtein distance using a Trie (2011)
<img src="http://stevehanov.ca/blog/images/acer.jpg"/> If you have a web site with a search function, you will rapidly realize that most mortals are terrible typists. Many searches contain mispelled words, and users will expect these searches to magically work. This magic is often done using levenshtein distance. In…
1399
How Swiss tables work in Go built-in map
Go 1.24 replaced the built-in map’s bucket-based runtime with Swiss Tables. This article explains groups, control bytes, H1 and H2, probing, table growth, directories, deletion, load factor, and the experimental split-group layout.
1400
How to bring up the Linux Kernel on a new platform
A guide to bringing up the Linux Kernel and a userspace application on a new hardware (or in this case, a self-made emulator)
1401
JEP 540: Simple JSON API (Now in Incubator)
Define a simple, standard API for parsing and generating JSON documents so that doing so does not require an external library. Enable many JSON processing tasks to be accomplished with little coding. This is an incubating API .
1402
Version control second coming
The very same week we signed our first ever angel investor for Plastic SCM, in early summer of 2005, Linus Torvalds announced Git. I had spent more than a year pitching investors to build a new version control, and suddenly the creator of Linux was building one himself. That week I understood the road ahead was going…
1403
Testing Postgres race conditions with synchronization barriers
Synchronization barriers let you test for race conditions with confidence.
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More on Version Control
This may have some legs
1405
Hanami 3.0: In Full Bloom
New mailers, i18n, and Minitest. Your apps faster by default. Our most complete Hanami yet!
1406
Building ML framework with Rust and Category Theory
A modular, compile-checked tutorial for learning category-theory ideas through a tiny Rust ML pipeline.
1407
Klondike Solitaire game for curses in 5k of C
How I developed a Klondike Solitaire game for curses in C language as an entry for the IOCCC.
1408
I hate packaging my software for Linux
Nineteen distribution channels later: what it actually costs to give a terminal editor away for free on Linux, and why the next step is a static musl binary that updates itself.
1409
My Favorite Bugs: Invalid Surrogate Pairs
In which I revisit one of my favorite bugs, the invalid surrogate pair.
1410
Pull request limits are cutting down the noise
Learn how pull request limits can help manage contribution volume in your repositories, and see what’s next on the roadmap.